Documents by Readdle - A central hub for all your files.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
GoodReader - With GoodReader on your iPhone, iPod Touch or iPad, you can read virtually anything, anywhere.
foobar2000 - An advanced freeware audio player for the Windows platform.
OPlayer HD - OPlayer HD offers you a chance to play your videos and live streams as you like and directly transform your file in any format without any discontinuity.
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.